Hanoi, May 8 -- The signed documents included:

1. The Memorandum of Understanding between the People's Police Academy under the Viet Nam's Ministry of Public Security and the National Police Academy under Sri Lanka's Ministry of Public Security and Parliamentary Affairs on cooperation in police training and scientific research.

2. The Memorandum of Understanding between Viet Nam's Ministry of Science and Technology and Sri Lanka's Ministry of Science and Technology on cooperation in the fields of science and technology.

3. the Memorandum of Understanding between the Viet Nam's Ministry of Ethnic and Religious Affairs and Sri Lanka's Ministry of Buddha Sasana, Religious and Cultural Affairs.

4. The Memorandum of Understanding on cultur...